linux通过key区别登陆的人

key区分登录用户

脚本放 /etc/profile.d，会默认登录的时候执行， 类似于

#!/bin/bash

# filename: /etc/profile.d/set_log_file.sh

#增加 关于history操作记录按key分离的实现

if [ ! -d /var/log/login/histlog ];then

        /bin/mkdir -p /var/log/login/histlog

        /bin/chmod 777 /var/log/login/histlog

fi

shopt -s histappend

history -a

# your_name 最好是英文

# ssh-rsa  kn5SZaPKpEvtX2LmGBDMddltLRgS14OCy3y8KLdHvMfBuhIdroDs9M3GVDUNEvZLelwh0zTRViaxS6BLHgDxHlImXEQ43OrsuUA46oYVW/O5kMJpQXLjBf7mQas/17y8c5XQmTzZbVknusIPxWBf+CKluFi3RtdTmVXLe48FaF9rg2J3bffxR2jlF7fGQTE4ABh6G99hKdtCh/2zhz7rpsJhnqDIpucwPz6anfdrptJUUfSQeRC4gSQxATwmmE1L7EW5tfWpJCKIfg/45pAIfCFKCof/HZpdBRUNLmn9+ktzGFrE47Q== your_name

# NAME_OF_KEY=$(ssh-add -L | awk '{ print $3 }' ) # 如果key注释是英文，可以直接用这个简单的方法,如上

NAME_OF_KEY=$(ssh-add  -L|awk '{print $2}' | xargs  -i grep '{}' ~/.ssh/authorized_keys |awk '{print $3}') # 获取登录的key的注释，一般是登录key的人的名字，最好英文

USER=$(whoami) # 获取登录的用户

if [ -n "${USER}_$NAME_OF_KEY" ];then

        if [ ! -f /var/log/login/histlog/"${USER}_$NAME_OF_KEY" ];then

                touch /var/log/login/histlog/"${USER}_$NAME_OF_KEY"

        fi

        export HISTFILE="/var/log/login/histlog/${USER}_$NAME_OF_KEY"

fi

# echo 导致scp失败，但是在debug的时候，可以把下面echo的注释打开

#echo  HISTFILE="/var/log/login/histlog/${USER}_$NAME_OF_KEY"

export PROMPT_COMMAND='history -a;history -w'

export HISTTIMEFORMAT='%Y%m%d-%H:%M:%S: '

日志生成的路径:

[root@ns_10.2.1.242 profile.d]$ cd /var/log/login/histlog/

[root@ns_10.2.1.242 histlog]$ pwd

/var/log/login/histlog

[root@ns_10.2.1.242 histlog]$ ls

root_xupeiyuan

ssh-add命令

[root@ns_10.2.1.242 etc]$ ssh-add -L

ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA4NWBVjQzaQChJiwx8IUMH5Og6f/0atgxZkn5SZaPKpEvtX2LmGBDMddltLRgS14OCy3y8KLdHvMfBuhIdroDs9M3GVDUNEvZLelwh0zTRViaxS6BLHgDxHlImXEQ43OrsuUA46oYVW/O5kMJpQXLjBf7mQas/17y8c5XQmTzZbVknusIPxWBf+CKluFi3/RtdTmVXLe48FaF9rg2J3bff/xR2jlF7fGQTE4ABh6G99hKdtCh/2zhz7rpsJhnqDIpucwPz6anfdrptJUUfSQeRC4gSQxATwmmE1L7EW5tfWpJCKIfg/45pAIfCFKCof/HZpdBRUNLmn9+ktzGFrE47Q== xupeiyuan

查看历史命令

查看所有登录的人执行的命令:

#!/bin/bash

#服务器history按key分离后操作记录查看脚本

cd /var/log/login/histlog/

rm -fr /tmp/usrname.history

ls /var/log/login/histlog/|while read usrname

do

    filename=$usrname

    exec 5<$filename

    while read line <&5

    do

        echo $line|awk '{if ($1 ~/^#[0-9]+/) {split ( $0 , time, "#"); printf (" '$usrname' " strftime("%Y-%m-%d_%H:%M:%S",time[2])"  ")} else print $0 }'>>/tmp/usrname.history

    done

done

sort -k2 /tmp/usrname.history |cat -n

上面脚本的结果:

[root@ns_10.2.1.242 histlog]$ sh ~/view_history.sh

     1   root_xupeiyuan 2015-03-13_10:27:04  ls

     2   root_xupeiyuan 2015-03-13_10:27:10  cd /etc/profile.d/

     3   root_xupeiyuan 2015-03-13_10:27:12  ls

     4   root_xupeiyuan 2015-03-13_10:27:14  vim set_log_file.sh

     5   root_xupeiyuan 2015-03-13_10:27:58  ssh-add -L